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Caterpillar

621F

Scraper

Gross Power
330.0 hp
Max Speed - Forward
31.7 mph
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Caterpillar 621F Scraper
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Specifications

90 data points

Operating Specifications

Operating Specifications specifications
Fuel Capacity215.1 gal

Engine

Engine specifications
Tractor Engine3406C

Weights

Weights specifications
Operating Weight70,715 lb
Total Operating - empty70,746 lb

Hydraulic System

Hydraulic System specifications
Bowl Cylinder Bore6 in
Bowl Cylinder Stroke32 in
Ejector Cylinder Stroke61 in
Ejector Cylinder Bore7 in
Scraper Circuit65.5 gal/min
Steering Circuit52.0 gal/min
Relief Valve - Steering Circuit2,250 psi
Cushion Hitch Circuit9.7 gal/min
Relief Valve - Implement Circuit2,150 psi
Apron Cylinder Bore7 in
Apron Cylinder Stroke24 in
Secondary Steering Circuit37.0 gal/min

Dimensions

Dimensions specifications
Height - Top of Cab133 in
Wheelbase305 in
Overall Length510 in
Overall Width137 in
Overall Height146 in
Wheel Base305 in
Width - Outside Rear Tires120 in
Height - Overall Shipping132 in
Length - Overall Machine507 in
Height - Scraper Blade Maximum21 in
Width - Rear Tire Center Lines87 in
Width - Overall Machine136 in
Width - Inside of Bowl116 in
Rear Axle - Rear of Machine85 in
Front of Tractor to Front Axle125 in
Width - Tractor117 in
Axle to Vertical Hitch Pin17 in
Ground Clearance - Tractor22 in

Transmission

Transmission specifications
Max Speed - Forward31.7 mph
1 Forward3.1 mph
2 Forward5.6 mph
3 Forward7.1 mph
4 Forward9.6 mph
5 Forward12.9 mph
6 Forward17.5 mph
Reverse5.7 mph
7 Forward23.6 mph
8 Forward31.9 mph

Steering System

Steering System specifications
Steering Angle - Left85 °
Steering Angle - Right90 °
Width - 180 degrees Turn430 in
Hydraulic Output52.0 gal/min
Ground-Driven Secondary Steering System39.9 gal/min

Bowl

Bowl specifications
Heaped Capacity20.10 yd³
Width of Cut120 in
Max Depth of Cut13 in
Rated Payload47,995 lb
Struck Capacity14.00 yd³

Tractor Engine

Tractor Engine specifications
Net Power - Gears 1-2330.0 hp
Gross Power330.0 hp
Displacement893 in³
Bore5 in
Stroke7 in
Caterpillar Net Power333.0 hp
EEC 80/1269330.0 hp
ISO 9249330.0 hp
SAE J1349327.0 hp

Scraper Bowl

Scraper Bowl specifications
Rated Load48,000 lb
Capacity - Struck14.00 yd³
Depth of Spread - Maximum70 in
Ground Clearance - Maximum21 in
Depth of Cut - Maximum13 in
Scraper Capacity - Heaped30.00 yd³
Width - Cut - To Router Bits119 in
Cutting Edge Thickness1 in
Apron Closure Force24,075 lb
Apron Opening70 in
Hyd. Penetration Force - 621G33,840 lb

Service Refill Capacities - Tractor

Service Refill Capacities - Tractor specifications
Cooling System22.0 gal
Differential43.0 gal
Final Drive - Each5.0 gal
Hydraulic Reservoir37.0 gal
Transmission19.0 gal
Crankcase9.5 gal
Wheel Coolant - Each12.0 gal

Weights - Standard, Tandem

Weights - Standard, Tandem specifications
Front Axle48,109 lb
Front Axle Weight - Loaded62,915 lb
Rear Axle22,638 lb
Rear Axle - Weight - Loaded55,792 lb
Total Operating - Empty70,715 lb
Total Operating - Loaded118,707 lb
Scraper Shipping21,715 lb
Total Shipping69,658 lb
Tractor Shipping47,943 lb

Comparable machines

Other scrapers in a similar weight class.